def test_is_namespace_package(namespace_package_test):
# returns True if it is a namespace package
assert is_namespace_package(namespace_package_test)
# returns False if it isn't a namespace package
assert not is_namespace_package('sys')
assert not is_namespace_package('jupyter_server')
# returns None if it isn't importable
assert is_namespace_package('not_a_python_namespace') is None
def get_extension_package(cls):
parts = cls.__module__.split('.')
if is_namespace_package(parts[0]):
# in this case the package name is `<namespace>.<package>`.
return '.'.join(parts[0:2])
return parts[0]
def test_is_namespace_package_no_spec():
with patch("importlib.util.find_spec") as mocked_spec:
mocked_spec.side_effect = ValueError()
assert is_namespace_package("dummy") is None
mocked_spec.assert_called_once_with("dummy")
def test_is_namespace_package(monkeypatch, name, expected):
monkeypatch.syspath_prepend(
Path(__file__).parent / "namespace-package-test")
assert is_namespace_package(name) is expected
